{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49311", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.536Z", "datePublished": "2025-02-26T02:10:41.139Z", "dateUpdated": "2025-03-26T17:45:02.641Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-03-26T17:45:02.641Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\n\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\nbelow:\n\n (Thread 1) | (Thread 2)\n | _set_timer()\nrtw_joinbss_event_prehandle()| mod_timer()\n spin_lock_bh() //(1) | (wait a time)\n ... | _rtw_join_timeout_handler()\n del_timer_sync() | spin_lock_bh() //(2)\n (wait timer to stop) | ...\n\nWe hold pmlmepriv->lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv->lock in position (2) of thread 2.\nAs a result, rtw_joinbss_event_prehandle() will block forever.\n\nThis patch extracts del_timer_sync() from the protection of\nspin_lock_bh(), which could let timer handler to obtain\nthe needed lock. What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/rtl8723bs/core/rtw_mlme.c"], "versions": [{"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "ae60744d5fad840b9d056d35b4b652d95e755846", "status": "affected", "versionType": "git"}, {"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee", "status": "affected", "versionType": "git"}, {"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "eca9748d9267a38d532464e3305a38629e9c35a9", "status": "affected", "versionType": "git"}, {"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/rtl8723bs/core/rtw_mlme.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846"}, {"url": "https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee"}, {"url": "https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9"}, {"url": "https://git.kernel.org/stable/c/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc"}], "title": "drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "30EAD0EB-B3D1-4A88-A3D8-4F8242E81A01", "versionEndExcluding": "5.15.47", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD", "versionEndExcluding": "5.17.15", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA6D643C-6D6A-4821-8A8D-B5776B8F0103", "versionEndExcluding": "5.18.4", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\n\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\nbelow:\n\n (Thread 1) | (Thread 2)\n | _set_timer()\nrtw_joinbss_event_prehandle()| mod_timer()\n spin_lock_bh() //(1) | (wait a time)\n ... | _rtw_join_timeout_handler()\n del_timer_sync() | spin_lock_bh() //(2)\n (wait timer to stop) | ...\n\nWe hold pmlmepriv->lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv->lock in position (2) of thread 2.\nAs a result, rtw_joinbss_event_prehandle() will block forever.\n\nThis patch extracts del_timer_sync() from the protection of\nspin_lock_bh(), which could let timer handler to obtain\nthe needed lock. What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers: staging: rtl8192bs: Corregir bloqueo en rtw_joinbss_event_prehandle() Hay un bloqueo en rtw_joinbss_event_prehandle(), que se muestra a continuaci\u00f3n: (Hilo 1) | (Hilo 2) | _set_timer() rtw_joinbss_event_prehandle()| mod_timer() spin_lock_bh() //(1) | (esperar un tiempo) ... | _rtw_join_timeout_handler() del_timer_sync() | spin_lock_bh() //(2) (esperar a que el temporizador se detenga) | ... Mantenemos pmlmepriv->lock en la posici\u00f3n (1) del hilo 1 y usamos del_timer_sync() para esperar a que el temporizador se detenga, pero el controlador del temporizador tambi\u00e9n necesita pmlmepriv->lock en la posici\u00f3n (2) del hilo 2. Como resultado, rtw_joinbss_event_prehandle() se bloquear\u00e1 para siempre. Este parche extrae del_timer_sync() de la protecci\u00f3n de spin_lock_bh(), lo que podr\u00eda permitir que el controlador del temporizador obtenga el bloqueo necesario. Adem\u00e1s, cambiamos spin_lock_bh() por spin_lock_irq() en _rtw_join_timeout_handler() para evitar el bloqueo."}], "id": "CVE-2022-49311", "lastModified": "2025-03-17T19:54:09.927", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:07.887", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()", "id": "2348009", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348009"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\nbelow:\n(Thread 1) | (Thread 2)\n| _set_timer()\nrtw_joinbss_event_prehandle()| mod_timer()\nspin_lock_bh() //(1) | (wait a time)\n... | _rtw_join_timeout_handler()\ndel_timer_sync() | spin_lock_bh() //(2)\n(wait timer to stop) | ...\nWe hold pmlmepriv->lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv->lock in position (2) of thread 2.\nAs a result, rtw_joinbss_event_prehandle() will block forever.\nThis patch extracts del_timer_sync() from the protection of\nspin_lock_bh(), which could let timer handler to obtain\nthe needed lock. What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."], "name": "CVE-2022-49311", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49311\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49311\nhttps://lore.kernel.org/linux-cve-announce/2025022636-CVE-2022-49311-fe0f@gregkh/T"], "threat_severity": "Moderate"}